<template>
  <div>
    <!-- Header 区域 -->
    <van-nav-bar
      fixed
      title="文章详情"
      left-arrow
      @click-left="$router.back()"
    />
    <!-- 文章信息区域 -->
    <div class="article-container">
      <!-- 文章标题 -->
      <h1 class="art-title">{{ artObj.title }}</h1>

      <!-- 用户信息 -->
      <van-cell center title="头条特约评论员" :label="artObj.pubdate">
        <template #icon>
          <img src="../../assets/dog.jpg" alt="" class="avatar">
        </template>
        <template #default>
          <div>
            <van-button type="info" size="mini" v-if="artObj.is_followed === true"
              @click="followedFn(true)"
            >已关注</van-button>
            <van-button icon="plus" type="info" size="mini" plain
              v-else
              @click="followedFn(false)"
            >关注</van-button>
          </div>
        </template>
      </van-cell>

      <!-- 分割线 -->
      <van-divider></van-divider>

      <!-- 文章内容 -->
      <div class="art-content" v-html="artObj.content"></div>

      <!-- 分割线 -->
      <van-divider>End</van-divider>

      <!-- 点赞(文章) -->
      <!-- attitude:  -1:无态度,  0-不喜欢 , 1-点赞 -->
      <div class="like-box">
        <van-button
          icon="good-job"
          type="danger"
          size="small"
          v-if="artObj.attitude === 1"
          @click="loveFn(true)"
        >已点赞</van-button>
        <van-button icon="good-job-o" type="danger" plain size="small"
          v-else
          @click="loveFn(false)"
        >点赞</van-button>
      </div>
    </div>

    <!-- 文章评论部分 -->
    <div>
        <CommentList></CommentList>
    </div>
  </div>
</template>

<script>
import {detailAPI, userFollowedAPI, userUnFollowedAPI, likeArticleAPI, unlikeArticleAPI } from '@/api'
import CommentList from './CommentList'
export default {
  components: { CommentList },
  data() {
        return {
            artObj: { // 保存文章对象

            }
        }
    },
    async created() {
        const res = await detailAPI({
          artId: this.$route.query.art_id
        })
        console.log(res)
        this.artObj = res.data.data
    },
    methods: {
      // 关注/取关 -> 作者
      // 注意：每个登录的手机号，都维护着自己的关注列表
      async followedFn(bool) {
        if (bool === true) {
          // 想要取关
          // 页面-显示关注按钮
          this.artObj.is_followed = false
          // 接口-调取关的接口
          const res = await userUnFollowedAPI({
              userId: this.artObj.aut_id
          })
          console.log(res)
        }
        else {
           // 用户点在“关注”按钮
           // 页面- 显示已关注按钮
           this.artObj.is_followed = true
           // 业务和接口 - 调关注的接口
            const res = await userFollowedAPI({
              userId: this.artObj.aut_id
            })
            console.log(res)
        }
      },
      // 点赞/取消点赞 -> 文章
      async loveFn(bool) {
        if (bool === true) {
          // 业务：想要取消点赞
          // 页面-显示点赞按钮
          this.artObj.attitude = 0
          // 接口-取消点赞
          const res = await unlikeArticleAPI({
            artId: this.artObj.art_id
          })
          console.log(res)
        }
        else {
          // 用户点在“点赞”按钮
          // 页面- 显示已点赞按钮
          this.artObj.attitude = 1
          // 业务和接口 - 进行点赞
          const res = await likeArticleAPI({
            artId: this.artObj.art_id
          })
          console.log(res)
        }
      }
    }
}
</script>

<style scoped lang="less">
.article-container {
  padding: 10px;
  margin-top: 46px;
}
.art-title {
  font-size: 16px;
  font-weight: bold;
  margin: 10px 0;
}

.art-content {
  font-size: 12px;
  line-height: 24px;
  width: 100%;
  overflow-x: scroll;
  word-break: break-all;
  /deep/ img{
    width: 100%;
  }
  /deep/ pre {
    white-space: pre-wrap;
    word-wrap: break-word;
  }
}

.van-cell {
  padding: 5px 0;
  &::after {
    display: none;
  }
}

.avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: #f8f8f8;
  margin-right: 5px;
  border: none;
}

.like-box {
  display: flex;
  justify-content: center;
}
</style>
